Fantasy sign or real brands?

[westKYdigger]

This sign was seen in a Cracker Barrel in Tennessee. I know there was an independent bottler in Murray, KY in the 40's & 50's that bottled several different off brands, like Suncrest, Pepsol & Pop-Kola.

I can't find any brands that would have 'RS' or 'Miami' on the caps. Are these real brands, or is this a fantasy sign?

 

[CreekWalker]

I would say, the brands were short-lived or in a very limited area around Murry, sounds like 1950s or 1960s brand names.